| IPC 7 English version |
| G05D-G05D02900 |
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| SECTION G – PHYSICS |
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| G 05 | CONTROLLING; REGULATING |
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| G 05 D | SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES (for continuous casting of metals B22D 11/16; valves per se F16K; sensing non-electric variables, see the relevant subclasses of G01; for regulating electric or magnetic variables G05F) |
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| Notes |
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| (1) | This subclass does not cover features of general applicability to regulating systems, e.g. anti-hunting arrangements, which are covered by subclass G05B. |
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| (2) | In this subclass, the following term is used with the meaning indicated: |
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| – | "systems" includes self-contained devices such as speed governors, pressure regulators. |
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| (3) | Control systems specially adapted for particular apparatus, machines or processes are classified in the subclasses for the apparatus, machines or processes, provided that there is specific provision for control or regulation relevant to the special adaptation, either at a detailed level (e.g. A21B 1/40 : "for regulating temperature in bakers' ovens") or at a general level (e.g. B23K 9/095 : "for automatic control of welding parameters in arc welding"). Otherwise, classification is made in the most appropriate place in this subclass. |
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| The following are lists of places where there is specific provision of the kind referred to above. Where such provision is at a detailed level, the places have been grouped according to the main groups of this subclass. Where the provision is at a general level (e.g. of a kind appropriate to more than one of the main groups specified in the lists, or to main groups G05D 27/00 or G05D 29/00), the places are listed under the title "General References". |
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| Places related to G05D 1/00 |
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| A01B 69/00 | Agricultural machines or implements |
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| A63H 17/36 | Toy vehicles |
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| B60V 1/11 | Air-cushion vehicles |
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| B62D 1/00 | Steering controls of motor vehicles or trailers, i.e. means for initiating a change of direction |
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| B62D 6/00 | Arrangements for automatically controlling the steering depending on driving conditions |
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| B62D 55/116 | Chassis of endless-tracked vehicles |
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| B63H 25/00 | Marine steering; control of waterborne vessels |
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| B64C 13/00 to |
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| B64C 15/00 | Controlling aircraft |
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| B64D 25/11 | Controlling attitude or direction of aircraft ejector seats |
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| B64G 1/24 | Cosmonautic vehicles |
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| F41G 7/00 | Self-propelled missiles |
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| F42B 15/01 | Guided missiles |
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| F42B 19/01 | Marine torpedoes |
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| Places related to G05D 3/00 |
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| A43D 119/00 | Footwear manufacture |
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| B21K 31/00 | Tool carriers in forging or pressing |
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| B23B 39/26 | Pattern-controlled boring or drilling tools |
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| B23D 1/30, |
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| B23D 3/06, |
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| B23D 5/04 | Planing or slotting machines controlled by copying device |
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| B23H 7/18 | Electrode to workpiece spacing in electric discharge and electrochemical machining |
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| B23K 26/02 | Workpiece in laser welding or cutting |
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| B23K 37/04 | Workpiece in welding |
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| B23K 37/06 | Molten metal in welding |
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| B23Q 5/20 | Spindles in machine tools |
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| B23Q 15/00, |
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| B23Q 16/00 | Tool or work position in machine tools |
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| B23Q 35/00 | Tools controlled by pattern or master model |
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| B24B 17/00 | Grinding controlled by patterns, drawings, magnetic tape or the like |
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| B24B 47/22 | Starting position in grinding |
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| B30B 15/24 | Actuating members in presses |
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| B62D 55/116 | Chassis of tracked vehicles |
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| B65H 23/18 | Web-advancing mechanisms |
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| E02F 3/43 | Dippers or buckets in dredgers |
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| F15B 9/00 | Fluid-pressure servomotors with follow-up action |
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| F24J 2/38 | Tracking of solar heat collectors |
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| G03F 9/00 | Photomechanical production of patterned or textured surfaces |
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| G11B 5/588 | Rotating heads in information storage systems |
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| G21C 7/12 | Movement of control elements in nuclear reactors |
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| Places related to G05D 5/00 |
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| A24B 7/14 | Tobacco cutting |
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| B05C 11/02 | Thickness of coating of fluent material on surface |
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| B21B 37/16 | Thickness, width, diameter or other transverse dimensions of the products of metal-rolling mills |
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| C03B 18/04 | Dimension of glass ribbon |
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| D21F 7/06 | Thickness of layer in paper making |
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| Places related to G05D 7/00 |
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| A45D 20/26 | Air in hair drying helmets |
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| A61M 5/168 | Flow of media to the human body |
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| B03C 3/36 | Gases or vapour in electrostatic separators |
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| B05C 11/10 | Fluent material in coating devices |
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| B67D 1/12 | Dispensing beverages on draught |
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| B67D 5/28 | Transferring liquids |
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| C10K 1/28 | Gas purifiers |
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| E21B 21/08 | Flushing boreholes |
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| E21B 43/12 | Obtaining liquids from wells |
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| F01D 17/00 | Flow in non-positive-displacement machines or systems |
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| F01M 1/16 | Lubrication arrangements |
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| F01P 7/00 | Coolant flow in cooling devices |
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| F02C 9/16, |
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| F02C 9/50 | Gas-turbine working fluid |
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| F16L 55/027 | Throttle passages in pipes |
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| F24F 11/00 | Air-flow or supply of heating or cooling fluids in air treatment arrangements |
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| F26B 21/12 | Air or gas flow in dryers |
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| G01G 11/08 | Continuous flow weighing apparatus |
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| G21D 3/14 | Coolant in nuclear power plant |
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| Places related to G05D 9/00 |
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| B01D 21/34 | Liquid level in sedimentation arrangements |
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| B41L 27/04 | Ink level in printing, manifolding or duplicating arrangements |
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| F22D 5/00 | Feed water for boilers |
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| H01J 1/10, |
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| H01J 13/14 | Liquid pool electrodes in electric discharge tubes or lamps |
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| Places related to G05D 11/00 |
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| B01D 21/32 | Density in sedimentation arrangements |
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| B01F 15/04 | Mixers |
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| B24C 7/00 | Abrasive blasts |
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| B28C 7/00 | Mixtures of clays or cements |
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| B65G 53/66 | Bulk material conveyers |
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| F02K 3/075 | Flow ratio in jet-propulsion plants |
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| Places related to G05D 13/00 |
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| B21C 1/12 | Drum speed in metal drawing |
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| B23Q 15/00 | Cutting velocity of tool or work |
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| B30B 15/20 | Ram speed in presses |
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| B60K 31/00 | Setting or limiting speed of vehicles |
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| B60L 15/00 | Electrically-propelled vehicles |
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| B64D 31/08 | Cruising speed of aircraft |
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| D01D 1/09 | Feed rate in manufacture of artificial filaments, threads, fibres, bristles or ribbons |
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| D01G 15/36 | Carding machines |
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| D02H 13/14 | Warping, beaming or leasing machines |
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| D03D 51/16 | Cyclically varying speed of looms |
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| G01N 30/32 | Speed of fluid carrier in chemical analysis |
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| G11B 15/46 | Filamentary or web record carriers or heads for such carriers in information storage systems |
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| G11B 19/28 | Non-filamentary, non-web record carriers, or heads for such carriers in information storage systems |
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| Places related to G05D 15/00 |
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| B25D 9/26 | Portable percussive tools |
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| B30B 15/22 | Ram pressure in presses |
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| B65H 59/00 | Tension in filamentary material |
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| B65H 77/00 | Tension in webs, tapes, filamentary material |
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| B66D 1/50 | Rope, cable or chain tension |
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| D03D 49/04 | Tension in looms |
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| D05B 47/04 | Tension in sewing machines |
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| D21F 3/06 | Pressure in paper-making machines |
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| F26B 13/12 | Drying fabrics |
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| F26B 21/10 | Pressure in dryers |
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| G11B 15/43 | Record carrier tension in information storage arrangements |
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| Places related to G05D 16/00 |
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| B60C 23/00 | Tyre pressure |
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| B63C 11/08 | Air within diving suit |
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| B64D 13/00 | Aircraft air-pressure |
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| B65G 53/66 | Bulk material conveyers |
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| D01D 1/09 | Manufacture of artificial filaments, threads, fibres, bristles or ribbons |
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| E21B 21/08 | Flushing boreholes |
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| F01M 1/16 | Lubrication arrangements |
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| G01N 30/32 | Pressure of fluid carrier in chemical analysis |
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| H01J 7/14 | Pressure in electric discharge tubes or lamps |
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| H01K 1/52 | Pressure in electric incandescent lamps |
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| Places related to G05D 19/00 |
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| B25D 9/26 | Portable percussion tools |
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| B65G 27/32 | Jigging conveyers |
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| Places related to G05D 21/00 |
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| B01D 21/32 | Density in sedimentation arrangements |
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| B01D 53/30 | Treating gases or vapours |
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| G01N 30/34 | Composition of fluid carrier in chemical analysis |
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| Places related to G05D 22/00 |
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| A01G 25/16 | Watering gardens, fields, sports grounds or the like |
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| A01K 41/04 | Poultry incubators |
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| A24B 9/00 | Tobacco products |
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| F24F 11/00 | Air conditioning |
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| F26B 21/08 | Dryers |
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| Places related to G05D 23/00 |
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| A21B 1/40 | Bakers' ovens |
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| A45D 6/20 | Hair curlers |
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| B21C 31/00 | Metal extruding |
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| B60C 23/00 | Tyre temperature |
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| B64G 1/50 | Cosmonautic vehicles |
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| C03B 18/18, |
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| C03B 18/22 | Float baths in glass making |
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| D01D 1/09 | Manufacture of artificial filaments, threads, fibres, bristles or ribbons |
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| D04B 35/30 | Knitting machines |
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| D06F 75/26 | Hand irons |
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| D21F 5/06 | Paper-making machines |
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| F01M 5/00 | Lubricant in lubrication arrangements |
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| F16N 7/08 | Arrangements for supplying oil or unspecified lubricant from a reservoir |
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| F22G 5/00 | Steam superheat |
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| F26B 21/10 | Dryers |
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| G01N 30/30 | Temperature of fluid carrier in chemical analysis |
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| H01M 10/50 | Electric storage cells |
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| H05B 6/06, |
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| H05B 6/50, |
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| H05B 6/68 | Dielectric, induction or microwave heating |
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| H05G 1/36 | Anode of X-ray tube |
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| Places related to G05D 25/00 |
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| B41B 21/08 | Photographic composing machines |
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| H01S 3/10, |
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| H05B 33/08, |
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| H05B 35/00 to |
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| H05B 43/00 | Lasers and other light sources |
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| General references |
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| A01D 41/127 | Combines [7] |
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| A01J 5/007 | Milking machines |
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| B23K 9/095 | Welding parameters |
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| B23Q 35/00 | Copying |
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| B24B 17/00, |
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| B24B 49/00 | Grinding or polishing |
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| B24C 7/00 | Abrasive blasts |
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| B67D 1/12 | Dispensing beverages on draught |
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| F23C 10/28 | Fluidised bed combustion apparatus [7] |
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| G03G 21/20 | Electrographic, electrophotographic or magnetographic processes |
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| H02P 5/00 to |
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| H02P 9/00 | Dynamo-electric motors or generators |
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| Subclass Index |
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| CONTROL OF: SPEED OR ACCELERATION; FORCE; PRESSURE; POWER; MECHANICAL OSCILLATIONS |
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| CONTROL OF: FLOW; LEVEL; RATIO |
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| CONTROL OF: TEMPERATURE; HUMIDITY; VISCOSITY; CHEMICAL OR PHYSICO-CHEMICAL VARIABLES; LIGHT INTENSITY |
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| CONTROL OF: POSITION, DIRECTION, DIMENSIONS |
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| SIMULTANEOUS CONTROL OF TWO OR MORE VARIABLES |
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1/ | 00 | Control of position, course, altitude, or attitude of land, water, air, or space vehicles, e.g. automatic pilot (radio navigation systems or analogous systems using other waves G01S) |
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1/ | 02 | . | Control of position or course in two dimensions [2] |
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1/ | 03 | . | . | using near-field transmission systems, e.g. inductive-loop type |
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1/ | 04 | . | Control of altitude or depth |
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1/ | 06 | . | . | Rate of change of altitude or depth |
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1/ | 08 | . | Control of attitude, i.e. control of roll, pitch, or yaw |
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1/ | 10 | . | Simultaneous control of position or course in three dimensions (G05D 1/12 takes precedence) |
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1/ | 12 | . | Target-seeking control |
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3/ | 00 | Control of position or direction (G05D 1/00 takes precedence; for numerical control G05B 19/18) |
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3/ | 10 | . | without using feedback [3] |
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3/ | 12 | . | using feedback [3] |
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3/ | 14 | . | . | using an analogue comparing device [3] |
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3/ | 16 | . | . | . | whose output amplitude can only take a number of discrete values (G05D 3/18 takes precedence) [3] |
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3/ | 18 | . | . | . | delivering a series of pulses [3] |
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3/ | 20 | . | . | using a digital comparing device [3] |
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5/ | 00 | Control of dimensions of material |
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5/ | 02 | . | of thickness, e.g. of rolled material |
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5/ | 03 | . | . | characterised by the use of electric means |
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5/ | 04 | . | of the size of items, e.g. of particles |
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5/ | 06 | . | . | characterised by the use of electric means |
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7/ | 00 | Control of flow (level control G05D 9/00; ratio control G05D 11/00; weighing apparatus G01G) |
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7/ | 01 | . | without auxiliary power |
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7/ | 03 | . | with auxiliary non-electric power [2] |
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7/ | 06 | . | characterised by the use of electric means |
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9/ | 00 | Level control, e.g. controlling quantity of material stored in vessel |
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9/ | 02 | . | without auxiliary power |
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9/ | 04 | . | with auxiliary non-electric power [2] |
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9/ | 12 | . | characterised by the use of electric means |
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11/ | 00 | Ratio control (control of chemical or physico-chemical variables, e.g. pH-value, G05D 21/00; humidity control G05D 22/00; control of viscosity G05D 24/00) [3] |
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11/ | 02 | . | Controlling ratio of two or more flows of fluid or fluent material |
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11/ | 03 | . | . | without auxiliary power |
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11/ | 035 | . | . | with auxiliary non-electric power [2] |
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11/ | 04 | . | . | . | by sensing weight of individual components, e.g. gravimetric procedure |
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11/ | 06 | . | . | . | by sensing density of mixture, e.g. using aerometer |
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11/ | 08 | . | . | . | by sensing concentration of mixture, e.g. by measuring pH-value [3] |
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11/ | 10 | . | . | . | . | by sensing moisture of non-aqueous liquids |
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11/ | 12 | . | . | . | by sensing viscosity of mixture |
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11/ | 13 | . | . | characterised by the use of electric means |
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11/ | 16 | . | Controlling mixing ratio of fluids having different temperatures, e.g. by sensing the temperature of a mixture of fluids having different viscosities |
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13/ | 00 | Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover (synchronising telegraph receiver and transmitter H04L 7/00) |
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13/ | 02 | . | Details |
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13/ | 04 | . | . | providing for emergency tripping of an engine in case of exceeding maximum speed |
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13/ | 06 | . | . | providing for damping of erratic vibrations in governors |
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13/ | 08 | . | without auxiliary power |
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13/ | 10 | . | . | Centrifugal governors with fly-weights |
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13/ | 12 | . | . | . | Details |
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13/ | 14 | . | . | . | . | Fly-weights; Mountings thereof; Adjusting equipment for limits, e.g. temporarily |
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13/ | 16 | . | . | . | . | Risers; Transmission gear therefor; Restoring mechanisms therefor |
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13/ | 18 | . | . | . | counterbalanced by spider springs acting immediately upon the fly-weights |
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13/ | 20 | . | . | . | counterbalanced by spider springs acting upon the articulated riser |
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13/ | 22 | . | . | . | counterbalanced by fluid pressure acting upon the articulated riser |
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13/ | 24 | . | . | . | counterbalanced by two or more different appliances acting simultaneously upon the riser, e.g. with both spring force and fluid pressure, with both spring force and electromagnetic force |
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13/ | 26 | . | . | . | with provision for modulating the degree of non-uniformity of speed |
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13/ | 28 | . | . | . | with provision for performing braking effects in case of increased speed |
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13/ | 30 | . | . | Governors characterised by fluid features in which the speed of a shaft is converted into fluid pressure (transducers converting variations of physical quantities into fluid-pressure variations F15B 5/00) |
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13/ | 32 | . | . | . | using a pump |
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13/ | 34 | . | with auxiliary non-electric power (fluid-pressure converters F15B 3/00) [2] |
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13/ | 36 | . | . | using regulating devices with proportional band, i.e. P. regulating devices |
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13/ | 38 | . | . | . | involving centrifugal governors of fly-weight type |
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13/ | 40 | . | . | . | involving centrifugal governors of pump type |
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13/ | 42 | . | . | . | involving fluid governors of flow-controller type, i.e. the width of liquid flow being controlled by fly-weights |
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13/ | 44 | . | . | . | involving fluid governors of jet type |
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13/ | 46 | . | . | using regulating devices with proportional band and integral action, i.e. P.I. regulating devices |
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13/ | 48 | . | . | . | involving resilient restoring mechanisms |
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13/ | 50 | . | . | . | involving connecting means for superimposing a proportional regulating device and an integral regulating device |
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13/ | 52 | . | . | using regulating devices with proportional band and derivative action, i.e. P.D. regulating devices |
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13/ | 54 | . | . | . | involving centrifugal governors of fly-weight type exerting an acceleratory effect |
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13/ | 56 | . | . | . | involving restoring mechanisms exerting a delay effect |
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13/ | 58 | . | . | . | involving means for connecting a speed- regulating device and an acceleration- regulating device |
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13/ | 60 | . | . | using regulating devices with proportional band, derivative, and integral action, i.e. P.I.D. regulating devices |
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13/ | 62 | . | characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement |
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13/ | 64 | . | Compensating the speed difference between engines meshing by a differential gearing or the speed difference between a controlling shaft and a controlled shaft |
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13/ | 66 | . | Governor units providing for co-operation with control dependent upon a variable other than speed |
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15/ | 00 | Control of mechanical force or stress; Control of mechanical pressure |
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15/ | 01 | . | characterised by the use of electric means |
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16/ | 00 | Control of fluid pressure |
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16/ | 02 | . | Modifications to reduce the effects of instability, e.g. due to vibrations, friction, abnormal temperature, overloading, unbalance (vibration-dampers F16F 7/00) |
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16/ | 04 | . | without auxiliary power |
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16/ | 06 | . | . | the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule |
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16/ | 08 | . | . | . | Control of liquid pressure |
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16/ | 10 | . | . | the sensing element being a piston or plunger |
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16/ | 12 | . | . | the sensing element being a float |
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16/ | 14 | . | with auxiliary non-electric power [2] |
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16/ | 16 | . | . | derived from the controlled fluid |
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16/ | 18 | . | . | derived from an external source |
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16/ | 20 | . | characterised by the use of electric means |
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17/ | 00 | Control of torque; Control of mechanical power |
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17/ | 02 | . | characterised by the use of electric means |
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19/ | 00 | Control of mechanical oscillations, e.g. of amplitude, of frequency, of phase |
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19/ | 02 | . | characterised by the use of electric means |
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21/ | 00 | Control of chemical or physico-chemical variables, e.g. pH-value [3] |
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21/ | 02 | . | characterised by the use of electric means |
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22/ | 00 | Control of humidity [2] |
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22/ | 02 | . | characterised by the use of electric means |
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23/ | 00 | Control of temperature (automatic switching arrangements for electric heating apparatus H05B 1/02) |
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23/ | 01 | . | without auxiliary power |
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23/ | 02 | . | . | with sensing element expanding and contracting in response to changes of temperature (G05D 23/13 takes precedence) |
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23/ | 08 | . | . | . | with bimetallic element (arrangement of valves and flow lines specially adapted for mixing fluid F16K 11/00) |
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23/ | 10 | . | . | . | . | with snap-action elements (for valves F16K 31/56) |
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23/ | 12 | . | . | with sensing element responsive to pressure or volume changes in a confined fluid |
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23/ | 13 | . | . | by varying the mixing ratio of two fluids having different temperatures |
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23/ | 185 | . | with auxiliary non-electric power [2] |
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23/ | 19 | . | characterised by the use of electric means |
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23/ | 20 | . | . | with sensing elements having variation of electric or magnetic properties with change of temperature (G05D 23/13 takes precedence) |
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23/ | 22 | . | . | . | the sensing element being a thermocouple |
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23/ | 24 | . | . | . | the sensing element having a resistance varying with temperature, e.g. thermistor |
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23/ | 26 | . | . | . | the sensing element having a permeability varying with temperature |
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23/ | 27 | . | . | with sensing element responsive to radiation |
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23/ | 275 | . | . | with sensing element expanding, contracting, or fusing in response to changes of temperature |
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23/ | 30 | . | . | Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature (automatic controllers in general and not restricted to control of temperature G05B) |
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23/ | 32 | . | . | . | with provision for adjustment of the effect of the auxiliary heating device, e.g. as a function of time |
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24/ | 00 | Control of viscosity |
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24/ | 02 | . | characterised by the use of electric means |
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25/ | 00 | Control of light, e.g. intensity, colour, phase (mechanically operable parts of lighting devices for the control of light F21V; optical devices or arrangements using movable or deformable elements for controlling light independent of the light source G02B 26/00; devices or arrangements, the optical operation of which is modified by changing the optical properties of the medium of the devices or arrangements for the control of light, circuit arrangements specially adapted therefor, control of light by electro-magnetic waves, electrons or other elementary particles G02F 1/00) [4] |
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25/ | 02 | . | characterised by the use of electric means |
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27/ | 00 | Simultaneous control of variables covered by two or more of the preceding main groups |
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27/ | 02 | . | characterised by the use of electric means |
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29/ | 00 | Simultaneous control of electric and non-electric variables |
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